t I really need the answer in 2 hours.
A spaceship of mass 2.30×106kgis cruising at a speed of 4.70×106m/swhen the antimatter reactor fails, blowing the ship into three pieces. One section, having a mass of 5.10×105kg, is blown straight backward with a speed of 2.40×106m/s. A second piece, with mass 8.30×105kg, continues forward at 1.00×106m/s